Automatic pencil

Details Automatic pencil Automatic pencil

1988-07-05

1990-01-30

Millin, V.

Coating implements with material supply

Solid material for rubbing contact or support therefor

Including means to advance material

401 85, 401 86, B43K 2102

Patent

active

048969818

ABSTRACT:
The present invention provides an automatic pencil which includes a coil spring sleeved around an inner tube, and a ring-shaped head portion carrying a lead pushing leg, the ring-shaped head portion being seated on an annular shoulder formed in the lower cone-shaped end of an outer casing, and the lead pushing leg begins to extend downward from the ring-shaped head portion at a location beyond the inner edge of the annular shoulder, thereby eliminating the need to provide a groove for receiving the upper side of the lead pushing leg.

REFERENCES:
patent: 2076470 (1937-04-01), Leimer
patent: 2358091 (1944-09-01), Lovejoy
patent: 3945733 (1976-03-01), Edel
patent: 4657421 (1987-04-01), Lin

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